Program Listing for File meta_object.hpp
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// Note: This header defines a simplication of a shared library
#ifndef CLASS_LOADER__META_OBJECT_HPP_
#define CLASS_LOADER__META_OBJECT_HPP_
#include <string>
#include <typeinfo>
#include <vector>
#include "class_loader/visibility_control.hpp"
namespace class_loader
{
class ClassLoader; // Forward declaration
namespace impl
{
class AbstractMetaObjectBaseImpl;
class CLASS_LOADER_PUBLIC AbstractMetaObjectBase
{
public:
AbstractMetaObjectBase(
const std::string & class_name,
const std::string & base_class_name,
const std::string & typeid_base_class_name = "UNSET");
~AbstractMetaObjectBase();
const std::string & className() const;
const std::string & baseClassName() const;
const std::string & typeidBaseClassName() const;
const std::string & getAssociatedLibraryPath() const;
void setAssociatedLibraryPath(const std::string & library_path);
void addOwningClassLoader(ClassLoader * loader);
void removeOwningClassLoader(const ClassLoader * loader);
bool isOwnedBy(const ClassLoader * loader) const;
bool isOwnedByAnybody() const;
size_t getAssociatedClassLoadersCount() const;
ClassLoader * getAssociatedClassLoader(size_t index) const;
protected:
virtual void dummyMethod() {}
AbstractMetaObjectBaseImpl * impl_;
};
template<class B>
class AbstractMetaObject : public AbstractMetaObjectBase
{
public:
AbstractMetaObject(const std::string & class_name, const std::string & base_class_name)
: AbstractMetaObjectBase(class_name, base_class_name, typeid(B).name())
{
}
virtual B * create() const = 0;
private:
AbstractMetaObject();
AbstractMetaObject(const AbstractMetaObject &);
AbstractMetaObject & operator=(const AbstractMetaObject &);
};
template<class C, class B>
class MetaObject : public AbstractMetaObject<B>
{
public:
MetaObject(const std::string & class_name, const std::string & base_class_name)
: AbstractMetaObject<B>(class_name, base_class_name)
{
}
B * create() const
{
return new C;
}
};
} // namespace impl
} // namespace class_loader
#endif // CLASS_LOADER__META_OBJECT_HPP_